Skymaster Forum  

Go Back   Skymaster Forum > Messages
Register FAQ Members List Calendar Today's Posts

Reply
Thread Tools Rate Thread Display Modes
  #1  
Unread 01-09-11, 05:23 PM
SkyMac's Avatar
SkyMac SkyMac is offline
Registered User
 
Join Date: Sep 2010
Location: Australia
Posts: 147
SkyMac is on a distinguished road
Clamshell Door Cracks

Hi Everyone

Just wanted to share with all of you some photo's of cracks that I have found in the rear clamshell doors after removing paint from the parts. Importantly have any of you come across this before, if not then I hope this note prompts you to carry out an inspection.

As we continue to fully strip and rebuild the 337G I know there will be a few more suprises that have to be rectified, as anticipated with a project such as this. Before I go chasing some clamshell doors from suppliers, if you have some after a gear door mod and no longer have a need for them let me know.

Regards
David

Contact email
david.sargeant@effem.com

PS: I hope the photo's attach OK

Last edited by SkyMac : 04-15-11 at 06:00 AM.
Reply With Quote
  #2  
Unread 01-09-11, 10:18 PM
Mark Hislop Mark Hislop is offline
Registered User
 
Join Date: May 2002
Location: Aurora, IL (ARR)
Posts: 171
Mark Hislop is an unknown quantity at this point
Door Repairs

David:

I don't think cracks in these areas are uncommon. When I bought my plane in 1996, there were repairs (welds) in the same areas your photos show. Fortunately, no cracks since then. I am careful to only open the doors at speeds lower than the 160mph allowed, typically at 120mph. I don't know if this has an affect, but like I say, no crack in 15 years.
__________________
Mark Hislop
N37E
Reply With Quote
  #3  
Unread 01-10-11, 12:57 AM
SkyMac's Avatar
SkyMac SkyMac is offline
Registered User
 
Join Date: Sep 2010
Location: Australia
Posts: 147
SkyMac is on a distinguished road
Hi Mark

Thanks for your response, good information to know. I will ask locally about welding and discuss it further with my LAME working on the aircraft.

Regards
David
Reply With Quote
  #4  
Unread 01-10-11, 07:33 AM
Gord Tessier's Avatar
Gord Tessier Gord Tessier is offline
Registered User
 
Join Date: Sep 2006
Location: CYSN
Posts: 94
Gord Tessier is an unknown quantity at this point
Both my gear doors had cracks near the rear attach brackett at the last annual.
The old ones were easily removed and new ones put in and all is well again.
__________________
Gord
C-FTES
Reply With Quote
  #5  
Unread 01-10-11, 05:51 PM
edasmus edasmus is offline
Registered User
 
Join Date: Nov 2006
Location: ARR - Aurora, IL - USA
Posts: 427
edasmus is on a distinguished road
Send a message via AIM to edasmus
I agree with Mark. Cannot say for sure if it makes any difference but it sure can't hurt. I am a big fan of not putting those big doors in the wind at anything over 120 mph indicated. I have the same mentality with flap extensions. Thanks for photos.

Ed
Reply With Quote
  #6  
Unread 01-11-11, 08:02 AM
jchronic jchronic is offline
Registered User
 
Join Date: Apr 2009
Location: Mass
Posts: 100
jchronic is on a distinguished road
I'll throw in my two cents worth of agreement on delaying gear exension until a lower airspeed. When I was a fleet manager at an airline, we reduced gear extension speed on my airplanes from the certificated 250 to 215 knots as SOP. Some minor cracking that had been appearing on the older aircraft ceased.

If you've ever watched the 337 gear cycle on jacks, it looks like it can catch a lot of wind. I shoot for intial flaps no faster 120 (if I've planned right) and gear at around 100.

Joe (Ahab)
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 07:26 PM.


Powered by vBulletin® Version 3.6.9
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.